Digital and Analog Signals: Which Is Better?

Name: ______Block: ______Date: ______

Digital and Analog Signals: Which is better?

NGSS Standard: 07-PS4-3: Integrate qualitative scientific and technical information to support the claim that digitized signals are a more reliable way to encode and transmit information than analog signals.

Your task:

• Research digital and analog signals
• What do the signals look like?
• How are they different?
• How has advances in technology helped us get a better sound quality?

Vocabulary Terms:

Draw the signals in the boxes below.

While watching the videos, take notes on the descriptions of digital and analog.

Video #1:

Compare and Contrast: Record player vs. MP3

VHS vs. DVD

Name: ______Date: ______Class: ______

FINAL WRITING PORTION:

Why are digital signals a more reliable way to transmit information than analog signals?

• To answer this question, you must use information from the video and from the readings.
• What does the signals look like and how does that make one more reliable than the other?
• What are the benefits of switching to digital signals from analog signals?

Rubric

Use this rubric when writing your piece. Check the boxes when you have written each portion. This paper should be a 5-paragraph paper. Each paragraph should have 4-6 sentences. If you choose to type your paper, it must be typed using either Calibri or Arial font with a font size no larger than 12. A rough draft and a final copy must be turned in with this rubric.